The four dirtiest places on the human body

The sanitary dead corners in the home should be cleaned regularly, and the sanitary dead corners in the body should not be neglected either. An article published in an American media magazine pointed out that there are four dirtiest parts of the human body.

1. Scalp

Studies have found that there are about 1 million microorganisms per square centimeter of the scalp, the most numerous of which are hair follicle sebaceous mites. They like to make their homes in the epidermis of the scalp, combining in groups of three or five to form a "big family", working together to survive by sucking the lipids secreted by the sebaceous glands, ultimately resulting in hair loss.

If you want to fight them, you must wash your hair frequently. It is best to comb your hair with a comb every morning and evening to stimulate the scalp and allow it to ventilate.

2. Oral cavity

The mouth is a place where food must pass through, but did you know that there are more than 100 million microorganisms per square centimeter in our mouth, including good bacteria and a considerable number of bad microorganisms, which are the culprits of bad breath.

They live between teeth and on the tongue, producing foul-smelling sulfur compounds as they break down food particles and saliva.

Keep your oral cavity clean and hygienic, brush your teeth carefully in the morning and evening, remember to use dental floss to clean between your teeth before brushing, and clean your tongue after brushing your teeth. The bacteria remaining on the tongue will also damage your breath.

3. Armpits

In a crowded bus or subway, you may have experienced that unbearable smell more than once! It emanates from the armpits and pollutes the surrounding air unscrupulously.

There are 1 to 10 billion microorganisms hidden in the armpits per square centimeter. Sweat itself does not have any peculiar smell. It is the "regular visitors" of the armpits - the rod-shaped bacteria are nourished by the fatty acids secreted by the skin, which multiply and breed a large number of bacteria, thus producing the unpleasant odor.

Armpit sweating is not a disease. It can be eliminated by taking frequent baths and changing clothes. It is best to choose cotton underwear.

4. Intestines

There are more than 400 species of bacteria living in the intestines. Escherichia coli in the intestines is a good guest in the human body's inn. It helps intestinal digestion and is also an integral part of our defense system.

But Escherichia coli outside the intestines can cause disease. If it "slips into" food, it may cause nausea, vomiting and diarrhea.

To protect the intestines, it is recommended to drink 1-2 bottles of yogurt every day. The probiotics in it can inhibit the dominance of bad bacteria in the intestines and help good bacteria gain control of the intestines. In addition, insisting on moderate exercise, such as regular push-ups and abdominal massage, can prevent intestinal aging.